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80226-91-1

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80226-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80226-91-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,2 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80226-91:
(7*8)+(6*0)+(5*2)+(4*2)+(3*6)+(2*9)+(1*1)=111
111 % 10 = 1
So 80226-91-1 is a valid CAS Registry Number.
InChI:InChI=1/C20H28F2O5/c1-2-3-4-7-13(23)10-11-15-16-12-14(8-5-6-9-17(24)25)27-19(16)20(21,22)18(15)26/h8,13,15-16,18-19,23,26H,2-7,9,12H2,1H3,(H,24,25)/b14-8-/t13-,15+,16+,18-,19-/m0/s1

80226-91-1Upstream product

80226-91-1Downstream Products

80226-91-1Relevant articles and documents

Method for preparing 10,10-difluoro prostacyclins

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, (2008/06/13)

A method is provided for preparing compounds of the formulae STR1 wherein A may be --C=C-- or --C C--, by reducing an epoxy lactone of the structure STR2 to form the corresponding epoxy hemiacetal, reacting the epoxy hemiacetal with a silyl compound to form an epoxy silyl acetal, reacting the epoxy silyl acetal with an acetylenic derivative to form a silyl acetal, removing the silyl protecting group to form a hemiacetal, reacting the hemiacetal compound with an appropriate Wittig reagent to form a protected difluoro PGF2α type compound, removing the protecting group, reacting the difluoro PGF2α with an iodine compound to form an iodoether and reacting the iodoether with a base to form the desired compounds. The compounds may be used, e.g., to prevent the aggregation of blood platelets. Novel intermediates produced in the above method are also provided.

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